What it is: Although not as commonly used or as popular as the PDO and PLLA, polycaprolactone (PCL) threads are one that can last up to more than 2 years.
The chemical bonds and structure in PCL are stronger and more complex, hence it takes a much longer time to be dissolved completely. The slower rate of degradation of the PCL threads also makes it ideal to be inserted to the surrounding tissues over an extended time; achieving a longer-lasting result. Once dissolved, the material breaks down into nontoxic ordinary substances and even after the thread has dissolved, collagen production can last for up to one year.
Available in Mono (smooth threads without barb) and Screw (threads intertwined together around the needle).